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Darkfield

Operator dossier

Helldown is a ransomware operator no longer publishing new disclosures. Darkfield has indexed 37 public victims claimed by this operator between August 13, 2024 and November 6, 2024. Helldown is a recently emerged ransomware group that first appeared in August 2024, operating with apparent financial motivations and demonstrating a preference for targeting critical infrastructure and business sectors. The group's origin and potential affiliations remain unclear due to limited public reporting from established threat intelligence sources, though their targeting patterns suggest a sophisticated understanding of high-value victims across Western nations, particularly the United States, Germany, Italy, Poland, and the United Kingdom. Based on available data, Helldown has compromised at least 37 known victims since their emergence, with their attacks primarily focused on business services, manufacturing, energy, and healthcare sectors, indicating a strategy of targeting organizations likely to pay substantial ransoms due to operational criticality. The group's specific attack methodologies, initial access vectors, and technical capabilities have not been extensively documented by major cybersecurity firms or government agencies, limiting detailed analysis of their operational procedures. As of current reporting, Helldown appears to remain active, representing a relatively new but concerning addition to the ransomware threat landscape, though the limited timeframe since their emergence and lack of comprehensive public analysis by established threat intelligence organizations suggests their full operational scope and impact are still being assessed by the cybersecurity community.

Most-targeted sectors

Most-affected countries

Recent disclosures by Helldown

All 37 indexed disclosures. Click any row for the full per-victim dossier.

See every disclosure indexed for Helldown →

How we know this. Operator profiles on Darkfield are built from continuous monitoring of every leak site the group is known to operate, cross-correlated with community-curated feeds (RansomLook, ransomware.live, RansomWatch, MISP-galaxy). Status flips from active to inactive when no new disclosure appears for 60 days. MITRE ATT&CK mappings shown in the interactive section below are sourced from CISA, vendor analysis, and the MITRE community catalog — we attribute each technique back to its source. Aliases reflect operator re-brands and affiliate splits.

Inactive ransomware operator

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Helldown

37 victims indexed · first seen 2 years ago · last activity 2 years ago

37
Victims indexed
#125 of 364 tracked operators
3m
Active period
Aug 2024 → Nov 2024
10
Countries hit
top United States · 9

At a glance

Status
inactive
First seen
2 years ago
Last activity
2 years ago
Onion sites
3 known endpoints
Primary sector
Not Found · 14 hits

About

Helldown is a recently emerged ransomware group that first appeared in August 2024, operating with apparent financial motivations and demonstrating a preference for targeting critical infrastructure and business sectors. The group's origin and potential affiliations remain unclear due to limited public reporting from established threat intelligence sources, though their targeting patterns suggest a sophisticated understanding of high-value victims across Western nations, particularly the United States, Germany, Italy, Poland, and the United Kingdom. Based on available data, Helldown has compromised at least 37 known victims since their emergence, with their attacks primarily focused on business services, manufacturing, energy, and healthcare sectors, indicating a strategy of targeting organizations likely to pay substantial ransoms due to operational criticality. The group's specific attack methodologies, initial access vectors, and technical capabilities have not been extensively documented by major cybersecurity firms or government agencies, limiting detailed analysis of their operational procedures. As of current reporting, Helldown appears to remain active, representing a relatively new but concerning addition to the ransomware threat landscape, though the limited timeframe since their emergence and lack of comprehensive public analysis by established threat intelligence organizations suggests their full operational scope and impact are still being assessed by the cybersecurity community.

References

5 links

External sources curated by the MISP threat-intel community.

Timeline

2 months
2024-08-01T00:00:00+00:00 · 222024-11-01T00:00:00+00:00 · 15
2024-08-01T00:00:00+00:002024-11-01T00:00:00+00:00

Top countries

🇺🇸 United States
9
🇩🇪 Germany
5
🇮🇹 Italy
3
🇵🇱 Poland
2
🇬🇧 United Kingdom
2
🇫🇷 France
2
🇨🇭 Switzerland
2
🇱🇧 Lebanon
2
United States dossier →Germany dossier →Italy dossier →Poland dossier →

Top sectors

Business Services
7
Manufacturing
4
Energy
3
Healthcare
3
Transportation/Logistics
2
Technology
2
Government
1
Financial
1
Business Services dossier →Manufacturing dossier →Energy dossier →Healthcare dossier →

MITRE ATT&CK

5 techniques · 4 tactics

Tactics

Initial AccessExecutionDefense EvasionImpact

Techniques

  • T1566Phishing
  • T1190Exploit Public-Facing Application
  • T1204User Execution
  • T1027Obfuscated Files or Information
  • T1486Data Encrypted for Impact

Recent victims

Loading…

Onion infrastructure

3 known
  • http://onyxcgfg4pjevvp5h34zvhaj45kbft3dg5r33j5vu3nyp7xic3vrzvad.onion
  • http://onyxcym4mjilrsptk5uo2dhesbwntuban55mvww2olk5ygqafhu3i3yd.onion
  • http://onyxcym4mjilrsptk5uo2dhesbwntuban55mvww2olk5ygqafhu3i3yd.onion/

Source

Updated 2 years ago

Data on this page is sourced from the group's own leak posts, cross-checked with public ransomware trackers (RansomLook, ransomware.live, RansomWatch), MITRE ATT&CK, and our own Tor and Telegram crawlers. This is a public observatory page — share freely.

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